| 2024 | Richard King Mellon Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2024 | Rk Mellon Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2024 | The Leash | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Nassau County Museum of Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2023 | Richard King Mellon Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2023 | Rolling Rock Club | 990 | Board Member | 1 | $0 | $0 | View return |
| 2023 | Rk Mellon Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2023 | Seawanhaka Corinthian Yacht Club | 990 | Treasurer | 3 | $0 | $0 | View return |
| 2023 | The Leash | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | Rolling Rock Club | 990 | Board Member | 1 | $0 | $0 | View return |
| 2022 | Seawanhaka Corinthian Yacht Club | 990 | Treasurer | 3 | $0 | $0 | View return |
| 2022 | Richard King Mellon Foundation | 990PF | Trustee | 0.5 | $0 | $0 | View return |
| 2022 | Rk Mellon Family Foundation | 990PF | Trustee | 0.5 | $0 | $0 | View return |
| 2022 | The Leash | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Nassau County Museum of Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2021 | The Leash | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Richard King Mellon Foundation | 990PF | Trustee | 0.5 | $0 | $0 | View return |
| 2021 | Rolling Rock Club | 990 | Board Member | 1 | $0 | $0 | View return |
| 2021 | Seawanhaka Corinthian Yacht Club | 990 | Treasurer | 3 | $0 | $0 | View return |
| 2021 | Rk Mellon Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2021 | Richard King Mellon Foundation | 990PF | Trustee | 0.5 | $0 | $0 | View return |
| 2021 | Rk Mellon Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2020 | Richard King Mellon Foundation | 990PF | Trustee | 0.5 | $0 | $0 | View return |
| 2020 | Nassau County Museum of Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2020 | The Leash | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Rolling Rock Club | 990 | Board Member | 1 | $0 | $0 | View return |
| 2020 | Rk Mellon Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2019 | Nassau County Museum of Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2019 | Rk Mellon Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2019 | Rolling Rock Club | 990 | Board Member | 1 | $0 | $0 | View return |
| 2019 | Richard King Mellon Foundation | 990PF | Trustee | 0.5 | $0 | $0 | View return |
| 2019 | The Leash | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Nassau County Museum of Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2018 | The Leash | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Rolling Rock Club | 990 | Board Member | 1 | $0 | $0 | View return |
| 2018 | Byerschool Foundation | 990 | Board Member | 1 | $0 | $0 | View return |
| 2018 | Chesapeake Bay Foundation Inc | 990 | Trustee (Through 01/19) | 1 | $0 | $0 | View return |
| 2017 | Rolling Rock Club | 990 | Board Member | 1 | $0 | $0 | View return |
| 2017 | Nassau County Museum of Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2017 | The Leash | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Chesapeake Bay Foundation Inc | 990 | Trustee | 1 | $0 | $0 | View return |
| 2017 | Byerschool Foundation | 990 | Board Member | 1 | $0 | $0 | View return |
| 2016 | Nassau County Museum of Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2016 | Green Vale School | 990 | Trustee | 1 | $0 | $0 | View return |
| 2016 | Rolling Rock Club | 990 | Board Member | 1 | $0 | $0 | View return |
| 2016 | Byerschool Foundation | 990 | Board Member | 1 | $0 | $0 | View return |
| 2015 | Nassau County Museum of Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2015 | Rolling Rock Club | 990 | Board Member | 1 | $0 | $0 | View return |
| 2015 | Chesapeake Bay Foundation Inc | 990 | Trustee | 1 | $0 | $0 | View return |
| 2015 | Byerschool Foundation | 990 | Board Member | 1 | $0 | $0 | View return |
| 2014 | Rolling Rock Club | 990 | Board Member | 1 | $0 | $0 | View return |
| 2014 | Nassau County Museum of Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2014 | Chesapeake Bay Foundation Inc | 990 | Trustee | 1 | $0 | $0 | View return |
| 2013 | Rolling Rock Club | 990 | Board Member | 1 | $0 | $0 | View return |
| 2013 | Nassau County Museum of Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2013 | Chesapeake Bay Foundation Inc | 990 | Trustee | 1 | $0 | $0 | View return |
| 2013 | Byerschool Foundation | 990 | Board Member | 1 | $0 | $0 | View return |